Single-sex education: the pros and cons
by: Kristin Stanberry | Updated: May 7, 2024
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Single-sex education (teaching boys and girls in separate classrooms or schools) is an old approach regaining momentum. While single-sex education has long existed in many private schools, it’s a relatively new option for public schools. Only 34 single-sex schools were operating in 2004, but by 2017 U.S. Department of Education data estimated more than 1,000 single-gender public schools. Forty-five percent are all boys, 55 percent are all girls, and 83 percent are overwhelmingly Black and Latino.
Since 2006, federal law has supported the option of single-sex education. when Education Secretary Margaret Spellings eased federal regulations , allowing schools to offer single-sex classrooms and schools, as long as such options are completely voluntary. This move has given parents and school districts greater flexibility, but the research on its value remains a matter of debate.
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Nature vs. nurture
Before weighing the pros and cons of single-sex education, consider the influences of “nature versus nurture.” Many factors affect each child’s learning profile and preferences:
- Some factors relate to the child’s nature, such as gender, temperament, abilities (and disabilities), and intelligence.
- Other influences stem from the way parents and society nurture the child: Family upbringing, socioeconomic status, culture, and stereotypes all fall under the “nurture” category.
Advocates of single-sex education argue for the value of separating children from a number of different angles. The most prominent advocate is psychologist and physician Leonard Sax, whose books Why Gender Matters (2005), Boys Adrift (2007), and Girls on the Edge (2010), argue that boys and girls are inherently different and need different educational experiences. Others have argued that the success of women’s colleges point to a value in female-only education, where the chroniclers of the boys growing academic struggles compared to their female peers suggest that boys need girl-free education to fight the stereotype that boys can’t read.
Critics point to a lack of evidence for such claims, summarized by a 2008 New York Times article, which explained that “many academics and progressives tend to find Sax’s views stereotyped and infuriating.” They point out that studies on the impact of single-sex education on learning often do not account for the fact that most single-sex schools are selective or draw from a different population than coeducational public schools. Former president of the American Psychological Association, Diane F. Halpern co-published “ The Pseudoscience of Single-Sex Schooling” with other scholars, lambasting sex-segregated education as “deeply misguided, and often justified by weak, cherrypicked, or misconstrued scientific claims.” The subject even inspired a New York Times debate where researchers and pundits squared off about the benefits and bluster of single-sex learning.
So, who’s right? Below are arguments both for and against single-sex education.
Making the case for single-sex education
Those who advocate for single-sex education in public schools argue that:
- Some parents don’t want their children to be in mixed-gender classrooms because, especially at certain ages, students of the opposite sex can be a distraction.
- A 2019 study from the University of Southern California indicates girls learn better when the classroom temperature is warm, while boys perform better in cooler classrooms. If that’s true, then the temperature in a single-sex classroom could be set to optimize the learning of either male or female students.
- Evidence suggests single-sex education can broaden the educational prospects for both girls and boys. A 2017 study examining students in Seoul, Korea, concluded, “male high school seniors attending all-boys schools show higher levels of science interests…than their counterparts attending coeducational schools.”
- A 2015 study out of Switzerland also reports, “[F]emale students in all-female classes experience less stereotype threat and perform better in their mathematics grades than their female peers in coeducational classes.”
- Advocates claim co-ed schools reinforce gender stereotypes, while single-sex schools can break down gender stereotypes. Girls are free of the pressure to compete with boys in male-dominated subjects such as math and science, while boys can more easily pursue traditionally “feminine” interests such as music and poetry.
- Some research offers evidence in favor of co-ed education for boys but single-sex for girls. A 2011 study by Victor Lavy and Analia Schlosser titled “ Mechanisms and Impacts of Gender Peer Effects at School ” determined “an increase in the proportion of girls impose boys and girls’ cognitive outcomes” in elementary schools, caused by “lower levels of classroom disruption and violence, improved inter-student and student-teacher relations, and lessened teacher fatigue.”
What critics say about single-sex education
Those who claim single-sex education is ineffective and/or undesirable make the following claims:
- The impact on learning isn’t conclusive. For instance, in one of the few studies that controlled for a host of parental, individual and school level factors, researchers analyzing Irish schools (where about one third of the students attend gender segregated schools) found no “significant difference in performance for girls or boys who attend single-sex schools compared to their mixed-school peers in science, mathematics or reading.”
- Few educators are formally trained to use gender-specific teaching techniques. However, it’s no secret that experienced teachers usually understand gender differences and are adept at accommodating a variety of learning styles within their mixed-gender classrooms.
- Gender differences in learning aren’t the same across the board; they vary along a continuum of what is considered normal. For a sensitive boy or an assertive girl, the teaching style promoted by advocates of single-sex education could be ineffective (at best) or detrimental (at worst).
- It doesn’t teach genders to work together. Students in single-sex classrooms will one day live and work side-by-side with members of the opposite sex. Educating students in single-sex schools limits their opportunity to work cooperatively and co-exist successfully with members of the opposite sex.
- It perpetuates gender stereotyping. For instance, the ACLU opposes single-sex schools, claiming they are based on “junk science” to perpetuate “disturbing gender stereotypes” and are a “waste of time” that divert attention from more valuable reforms, such as reducing class size and increasing teacher training. Or as Diane F. Halpern’s put it in “The Pseudoscience of Single-Sex Schooling” “…sex segregation increases gender stereotyping and legitimizes institutional sexism.”
Measuring public perception
How does the public view single-sex education? The “average” adult has a different opinion than the graduates of these schools.
In a 2022 poll by YouGov only 25% of adult men surveyed thought all-boys schools were “better” than co-ed schools, with the same percentage viewing them as “worse.” Adult women were less enthusiastic – only 17% thought all-boy schools were superior, with 21% regarding them as worse. Public opinion of all-girls schools was a bit more generous: 25% of men thought they were better for girls than coed schools, and 22% said they were worse, while 20% of women viewed all-girls schools as better than coeds, with 19% claiming they were worse.
People who actually attended single-sex schools were far more supportive. Men who attended all-boys schools were 45 percent positive, claiming it was better than coed, with 29 percent saying they were worse. Women who attended all-girls schools were 41 percent positive, and 26 percent negative.
Many (often most) people answered the survey question with “not sure” or “no difference.” Their uncertainty mirrors the overall ambiguity of the co-ed vs. single-sex school question. As is true of many educational questions, the answer for any given family often depends on context. For instance, is the school operating in a culture where a single-sex education might offer students a respite from gender discrimination? Is the school (coeducational or single-sex) reinforcing gender stereotypes or working against them? Why might the family want single-sex education for their child? Is it intended to empower the child to succeed and learn or keep them narrowly focused on acceptable gender roles?
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- All Girls, All Boys, All Good—The Benefits of Single-Sex Education
Once considered a vestige of the Victorian era, single-sex education is enjoying a resurgence.
BY MARYBETH HUNTER
Members of the FS Community Comment
“My experience … was liberating. I could shed all of the concerns that derive from dual sex environments while in the classroom, but assume my interest in a diverse social life when I chose to. It was all on my terms and that was a powerful dynamic for me.”
—FSO, single-sex college graduate
“[Single-sex college] shaped who I am and better prepared me for the ’real world.’ It made me strong and independent, and gave me confidence in my intelligence and abilities.”
—FS student, single-sex college graduate
“It brought a different type of focus in the classroom, as well as fostering an environment that encourages girls to be more vocal and participate in class.”
—FS student, single-sex high school graduate
Foreign Service parents strive to make the best educational choices for their children, whether in the United States or posted abroad. One option gaining attention is single-sex education, whether at post schools or at boarding schools, in the United States or abroad, in single classrooms or entire schools, from kindergarten through college.
Once considered a vestige of the Victorian era, single-sex education is currently gaining popularity. While the notion may call to mind images of stuffy institutions in idyllic settings, parents and students increasingly value such an education based on the knowledge that differences exist in the ways both boys and girls learn, and that teachers at single-sex schools tailor their teaching style and material to respond to those differences.
The benefits of single-sex education reveal themselves in a variety of ways. For instance, educators at single-sex schools have reported that students attending their schools demonstrate increased confidence in their abilities. Also, proponents of single-sex education argue that such confidence has impact beyond the academic arena by furthering social skills and strengthening future boy-girl relationships.
The common social pressures existing in coed environments are absent, enabling student development without potential distractions from the opposite sex.
Gender-Based Learning Support
Teachers have long been aware that learning styles among students can vary significantly. Research suggests that boys and girls might benefit more from divergent teaching styles that cater to their respective biological profiles.
Take listening skills, for instance: Boys often need to hear instructions at a higher volume of speech for increased comprehension. Likewise, research suggests that boys are more receptive to action-oriented, tactile presentations in the classroom. Another study indicates that, in general, boys are more vocal than girls on teams and prefer group work to independent study.
As for females, researchers find that girls learn better when the nuances of color, texture and smell are introduced. Girls reportedly perform better academically in a warmer classroom, while boys perform better in a classroom at least five degrees cooler than their female counterparts prefer.
In a single-sex setting, instructors can vary teaching methods to bring out the best in their students. When educators tailor their approach to boost academic success, this contributes to psychological and emotional success. That said, it is important to keep in mind that teachers may not always be trained properly to employ gender-specific teaching techniques effectively.
Boosting Self Esteem
Student self-esteem is a concern for parents and educators. Students in a single-sex environment are more likely to be open to various fields of study, and are less likely to be self-conscious or hesitant about trying out new areas of learning atypical for that gender. Structuring the classroom experience around this model allows the student to enjoy the learning experience more deeply.
In turn, students develop greater self-confidence, tackle more challenging or “out of the norm” courses of study, and engage more freely with peers and adults in classroom discussions. Finally, studies show that single-sex education encourages students to develop their own interests and take advantage of leadership opportunities regardless of their gender.
According to New York Times writer Elizabeth Weil, administrators at single-sex schools report “fewer discipline issues, more parental support and higher test scores in reading, writing, and math” than their coed counterparts.
Single-sex schools also reduce social and peer pressure, which has been intensified in recent years by social media. In some cases, removing the presence of girls allows boys to knuckle down and work on their own. Conversely, removing the presence of boys can help girls become more vocal when engaging with peers because they no longer feel intimidated and are less self-conscious.
Smashing Stereotypes
- Anderson, Melinda (2015). The Resurgence of Single-Sex Education: The Benefits and Limitations of Schools that Segregate Based on Gender. Atlantic Monthly.
- Gonchar, Michael (2014). Does Separating Boys and Girls Help Students Perform Better in School? The New York Times.
- Morrison, Nick (2014). Single-Sex Education Belongs in the 21st Century. Forbes Magazine.
- Novotny, Amy (2011). Coed versus Single-Sex Ed. Journal of the American Psychological Association , Vol. 2, No. 2, p. 58.
- Weil, Elizabeth (2008). Teaching Boys and Girls Separately. New York Times Magazine.
- Boys and Girls Learn Differently! A Guide for Teachers and Parents 2nd Edition (Jossey-Bass, 2010) by Michael Gurian (Author), Kathy Stevens (Contributor)
- A Gendered Choice: Designing and Implementing Single-Sex Programs and Schools (Corwin, 2009) by David W. Chadwell
- The Separation Solution?: Single-Sex Education and the New Politics of Gender Equality (University of California Press, 2016) by Juliet A. Williams
- Single-Sex Schools: A Place to Learn (Rowman and Littlefield Publishers, 2015) by Cornelius Riordan
- Single-Sex versus Coeducational Schooling (CreateSpace Independent Publishing Platform, 2014) by U.S. Department of Education
- Why Gender Matters: What Parents and Teachers Need to Know about the Emerging Science of Sex Differences (Harmony, 2006) by Leonard Sax, M.D., Ph.D.
- International Boys’ Schools Coalition (IBSC) – www.theibsc.org
- National Coalition of Girls’ Schools (NCGS) – www.ncgs.org
Eliminating gender stereotypes in the classroom has demonstrable advantages, especially in closing achievement gaps. According to Sara Sykes, the director of admissions at Westover School (an all-girl’s school in Middlebury, Connecticut), students at single-sex schools are “more likely to pursue a wider range of fields of study especially in science, technology, engineering and mathematics.”
Ms. Sykes points to a recent National Coalition of Girls’ Schools study, which reported: “When rating their computer skills, 36 percent of graduates of independent girls’ schools consider themselves strong students compared to 26 percent of their coed peers. In addition, 48 percent of girls’ school alumnae rate themselves great at math versus 37 percent for girls in coed schools. In fact, three times as many alumnae of girls’ schools plan to become engineers.”
Likewise, a 2003 study in Psychology of Men and Masculinity indicated that boys from single-sex schools were more than twice as likely to pursue interests in subjects such as art, music, drama and foreign languages compared with boys at coed schools.
However, some researchers caution that single-sex education is detrimental to the academic, social and behavioral development of a child because it can lead to even greater gender discrimination and difficulty relating to the opposite sex as adults.
Developing Diversity
Educational experts argue that diversity is an important consideration in building a quality educational experience. While one might think that homogeneity is fostered in single-sex schools, diversity is often woven into such environments via hiring choices and extracurricular opportunities.
At the all-boys’ Salisbury School in Salisbury, Connecticut, Director of Admissions Peter Gilbert reports that students are constantly exposed to perspectives other than their own through coed opportunities in leadership and community service, as well as daily interactions with opposite-sex school staff members.
Conversely, at girls’ schools, male staff members are often role models, allowing for a relatively mature dialog to occur with the opposite gender and facilitating a mentoring relationship.
The crucial point is that faculty, staff and families at single-sex schools realize that they are all educating students to succeed in an increasingly diverse and complex world. The overall setting may be single-sex, but the perspective is decidedly not one-dimensional.
Single-Sex Education at Post
Some Foreign Service parents have already chosen the single-sex education path for their children. Department of State employee Katherine Lawson and her husband Nestor Sainz weighed all of their options carefully before choosing the all-girl San Silvestre School for their daughter Isabella when their family was posted in Lima, Peru.
“For me, one of the most important aspects of the all-girl learning environment was that by holding the students to high expectations in all areas—math, science, computers, art, poetry, language and physical education—the school broke down gender stereotypes,” says Katherine
“The school seemed to get Isabella’s needs right away and worked with her directly to chart her course of becoming an independent lifelong learner. The seeds of independence and confidence sown in those early years are already starting to take root and flourish now that she is a teenager.”
Know Your Student
Despite the many benefits of single-sex education, educators and researchers agree that not every student will thrive in a single-sex environment. Every student is different. Parents are encouraged to evaluate the talents and needs of their own children to determine if the single-sex setting suits those needs.
Foreign Service families looking to discuss the variety of educational options available should contact the Family Liaison Office Education and Youth team at [email protected] .
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Marybeth Hunter is the education and youth officer at the State Department’s Family Liaison Office.
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Focus on corruption and foreign policy.
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Is Single-Sex Education Still Useful?
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- Jan. 5, 2017
Note: This Student Opinion question was written by a member of an experimental Student Council we ran during the 2015-16 school year. He is a junior at an all-boys’ high school in Boston.
Are all-boys or all-girls schools still useful? What are their benefits? With the emergence of new ideas about the fluidity of gender identity , do they even still make sense?
For example, what happens if a transgender student applies to a single-sex school, or if an enrolled student transitions?
In “ Old Tactic Gets New Use: Public Schools Separate Girls and Boys ,” Motoko Rich provides some context about the educational role of these schools:
Single-sex education, common in the United States until the 19th century, when it fell into deep disfavor except in private or parochial schools, is on the rise again in public schools as educators seek ways to improve academic performance, especially among the poor. Here at Charles Drew Elementary School outside Fort Lauderdale, about a quarter of the classes are segregated by sex on the theory that differences between boys and girls can affect how they learn and behave. ... The theory is generally held in low regard by social scientists. But Ms. Flowers notes that after the school, where nearly all students are eligible for free or reduced-price lunches, started offering the classes two years ago, its state rating went from a D to a C. Similar improvements have been repeated in a number of other places, causing single-sex classes to spread to other public school districts, including in Chicago, New York and Philadelphia.
But questions about the mission of single-sex education have become especially relevant at women’s colleges in recent years thanks to an evolving understanding of gender identity. In a 2014 Op-Ed, “ Who Are Women’s Colleges For? ”, Kiera Feldman writes:
But today, women’s colleges are at a crossroads their founders could never have foreseen, struggling to reconcile their mission with a growing societal shift on how gender itself is defined. A handful of applications from transgender women have rattled school administrators over the past year, giving rise to anxious meetings and campus demonstrations. On April 29, the Department of Education issued new guidance: Transgender students are protected from discrimination under Title IX.
And in another 2014 piece, “ When Women Become Men at Wellesley ,” Ruth Padawer introduces us to Timothy Boatwright, who was raised a girl and checked “female” when he applied, but introduced himself at college as “masculine-of-center genderqueer.” He asked everyone at Wellesley to use male pronouns and the name Timothy, which he’d chosen for himself. Ms. Padawer writes:
Some two dozen other matriculating students at Wellesley don’t identify as women. Of those, a half-dozen or so were trans men, people born female who identified as men, some of whom had begun taking testosterone to change their bodies. The rest said they were transgender or genderqueer, rejecting the idea of gender entirely or identifying somewhere between female and male; many, like Timothy, called themselves transmasculine. Though his gender identity differed from that of most of his classmates, he generally felt comfortable at his new school.
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The Resurgence of Single-Sex Education
The benefits and limitations of schools that segregate based on gender
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Defenders of same-sex schools hold fast to the belief that girls and boys benefit from separate academic instruction. Proponents often point to school experiences documented in landmark reports like The American Association of University Women’s “ How Schools Shortchange Girls ” as evidence of widespread inequities faced by girls in mixed classrooms. Same-sex educational settings are also offered as a way to improve lagging achievement for low-income students of color— mainly boys —in urban public schools. Conversely, opponents claim single-sex education perpetuates traditional gender roles and “ legitimizes institutional sexism ,” while neuroscientists refute the merits of gender differences between girl and boy brains. And rather than creating more equitable schools for nonwhite students, some critics compare separating boys and girls to racially segregated schooling. The disputes pitting ardent supporters against fervent detractors have done little to dampen popularity, however. The prevalence of single-sex public schools has risen and fallen over the years, yet the last decade has seen a major revival. According to the National Association for Single Sex Public Education, only 34 single-sex public schools were in operation in 2004 . That number jumped 25-fold in 10 years: The New York Times reported in 2014 that 850 schools nationwide had single-sex programs. With participation apparently on the upswing, the Department of Education’s civil-rights division offered guidelines on single-sex classes to K-12 public schools last year. Against this backdrop of renewed interest in single-sex schools and classes, the author Juliet A. Williams, a professor of gender studies and associate dean of the Division of Social Sciences at UCLA, takes a deep dive into the social aspects and framing of this hotly debated issue in a new book, The Separation Solution? Single-Sex Education and the New Politics of Gender Equality . She recently shared some thoughts with me on the subject. The interview that follows has been edited and condensed for clarity.
Melinda D. Anderson: A major thread running through the book is that so many people—educators, parents, activists, and politicians—strongly believe in the potential of single-sex education to unleash academic excellence, while the evidence supporting this claim is sparse and insufficient. What would you say is the primary driving force behind its well-entrenched support?
Juliet A. Williams: Some people believe in single-sex education because they had a great personal experience. To other people, single-sex education seems like plain old common sense: They see differences between boys and girls, and they like the idea of creating schools that reflect these differences. Still others look at the failure of U.S. public-school systems and think, “we’ve got to do something; let’s give it a try.” Since the 1990s, there has been a resurgence of interest in single-sex education in public schools serving students in grades K-12. My book takes a look at the arguments driving interest in single-sex public education, as well as the results. What I have found is that single-sex public-school initiatives have been created with the best of intentions, but that they are not delivering the results. At the same time, they are producing some unintended consequences in terms of reinforcing damaging gender stereotypes.
Anderson: Your freshman year at the Philadelphia High School for Girls, an all-girls public magnet for academically gifted students, is compared to “serving time in prison,” a characterization I found peculiar as a graduate of Girls’ High. With the exception of your brief stint in an all-girls school, The Separation Solution? lacks input from current students or alumni of K-12 single-sex schools. Could their perspectives have expanded your analysis of single-sex education? Williams: I’m pretty sure I would have experienced some measure of adolescent angst no matter where I went to school, and looking back, I think it would be a real mistake to conclude that it was because I happened to attend an all-girls [high school] as opposed to a coed one. By the same token, I suspect that many people who flourished in single-sex environments would have had an equally rewarding experience at a coed school. That’s the problem with relying on personal experience to assess what works in education, and what doesn’t. Think of it this way: If I were to write a book about new treatments for cancer, [I wouldn’t] go out and ask people whether they enjoyed their treatment. I would want to know about results. Our kids deserve to grow up in a society that takes their education every bit as seriously as we take our commitment to good medicine. Anderson: The creation of single-sex academies in the 1950s throughout the South by anti-integrationists aiming to thwart Brown v. Board of Education and keep black boys from being in classrooms with white girls is an interesting tidbit. Today, K-12 single-sex programs are still mostly concentrated in southern states. Can you talk more about this historical footnote?
Williams: Mention single-sex education to most people today, and you are likely to conjure images of elite institutions in bucolic settings, where emphasis is placed not only on rigorously training young minds, but also on building character and developing self-confidence. As I discovered, however, behind the image of single-sex education’s rosy past lies the story of its disturbingly checkered history. After the Civil War, several of the nation’s increasingly diverse, urban school districts moved to create single-sex public high schools to appease xenophobic parents worried about the prospect of students from different ethnic, religious, and class backgrounds rubbing shoulders throughout the school day. In the years following the landmark Supreme Court ruling, the prejudice driving the retreat from coeducational public schools was even more flagrant … amidst racist panic about the inevitability of young white women and young black men forming social bonds across racial lines.
This history is important [yet] I don’t think there are any easy analogies to be drawn between racially segregated schools in the past, and single-sex schools in the present. Many single-sex programs have been initiated specifically to address the unmet needs of underserved students, particularly black and Latino young men, and there is no question that some of the very best single-sex public schools today are ones created to serve low-income students of color. What is a question [though] is whether these schools are great because they are single-sex. So far, there isn’t evidence to show that they are. Instead, the research shows that successful schools, whether single-sex or coed, tend to have certain things in common, like creating strong mentoring relationships and keeping class sizes to a manageable level. When this happens, students benefit—whether or not boys and girls [are separated].
Anderson: The claim that boys and girls are “hard wired” differently, namely the neuroscience of sex-based learning differences, has been refuted by scientific researchers. Still, a belief in its efficacy persists as an education-policy approach and in teacher professional development. How can this be more effectively countered? Williams: While researching this book I learned about a fascinating phenomenon called “the selective allure of neuroscientific information.” In a series of ingenious experiments, a team of Yale researchers found that even the citation of irrelevant neuroscience information can make certain claims seem more credible than they otherwise would be. What this means in practice is that we can be all too easily drawn into accepting even the most poorly substantiated claims about the differences between men and women, provided those claims come dressed up in the commanding rhetoric of “hard-wiring.” What I found is that many of today’s “gender-sensitive” pedagogies are sold to teachers and parents in a deceptively appealing pseudo-scientific jargon of sex difference. That’s not to say that there aren’t real differences between girls and boys. But it is to say that we should be very skeptical of anyone who claims that we can extrapolate from what currently is known. Despite the fact that much of the popular science of sex difference has been debunked, the past decade has seen a proliferation of public-school programs modeled on bogus teachings.
Anderson: The prospect of transgender students recalibrating the single-sex education debate is presented in the book, with the mission and practice of single-sex schooling upended “in new and important directions.” What do you see as the future of single-sex education as growing numbers of students no longer identify with a gender binary?
Williams: It will be interesting to see how single-sex schools address the issue of gender diversity moving forward. The Department of Education’s Office of Civil Rights has been clear that transgender and gender nonconforming students are entitled to protection from sex-based discrimination under Title IX. [All public and private elementary and secondary schools, school districts, colleges, and universities receiving any federal financial assistance must comply with Title IX] Further, all students are entitled to participate in school programs based on their gender identity. One place single-sex public schools may wish to look for guidance moving forward is to the nation’s private women’s colleges. In recent years, several of the most prestigious historically all-women’s colleges have revised their admissions statements to explicitly welcome applications from transgender and gender nonconforming students. In doing so, these colleges are taking important steps to ensure that their commitment to single-sex education doesn’t inadvertently perpetuate bias and intolerance. Anderson: A provision in No Child Left Behind in 2001 helped accelerate the growth of single-sex education—you describe a “surge of single-sex experiments” in public-school classrooms across the country. A co-sponsor of the provision allowing school districts to use grants for same-sex schools and classrooms was former New York Senator Hillary Clinton, who cast single-sex education as furthering public-school choice. Now a candidate for U.S. president, how do you think same-sex education might fare in a Hillary Clinton administration?
Williams: Many officials, including then Senator Hillary Clinton, saw single-sex public education as a promising reform strategy. At the time, federal money was set aside to encourage “experimentation” with single-sex approaches. Since then, hundreds of single-sex public-schooling initiatives have been launched. What have we learned? Predictably, fans of single-sex education loudly proclaim these experiments to be a success —and they have a few carefully chosen examples to prove it. But the real story lies in the overwhelming number of single-sex initiatives that have failed to produce positive results. In 2014, an exhaustive review found no significant proven advantages of single-sex schooling over coeducation, either for boys or for girls. With so many proven approaches to education reform out there, let’s invest in those. Our kids’ lives are too precious to experiment with.
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Single-Sex Education: New Perspectives and Evidence on a Continuing Controversy
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- Published: 31 July 2011
- Volume 65 , pages 659–669, ( 2011 )
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The number of single-sex schools in the United States has climbed steadily in recent years, despite a lack of consensus that such schools lead to academic or psychological outcomes superior to those of coeducational schools. In this introduction to the first part of a special issue on the topic, we review the history of single-sex education in the U.S. and factors that have led to its recent rise. We then review ideological and methodological controversies in the field. Finally, we summarize the eight empirical studies that appear in the issue, highlighting the contributions of each paper to a body of work that we hope will inform educational practice and policy.
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Bigler, R.S., Signorella, M.L. Single-Sex Education: New Perspectives and Evidence on a Continuing Controversy. Sex Roles 65 , 659–669 (2011). https://doi.org/10.1007/s11199-011-0046-x
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U.S. Department of Education
Single-sex education refers most generally to education at the elementary, secondary, or postsecondary level in which males or females attend school exclusively with members of their own sex. This report deals primarily with single-sex education at the elementary and secondary levels. Research in the United States on the question of whether public single-sex education might be beneficial to males, females or a subset of either group (particularly disadvantaged youths) has been limited. However, because there has been a resurgence of single-sex schools in the public sector, it was deemed appropriate to conduct a systematic review of single-sex education research.
A number of theoretical advantages to both coeducational (CE) and single-sex (SS) schools have been advanced by their advocates, a subset of whom have focused specifically on the potential benefits of SS schooling for disadvantaged males who have poor success rates in the educational system. The interpretation of results of previous studies in the private sector or the public sectors of other countries has been hotly debated, resulting in varying policy recommendations based on the same evidence. However, no reviews on this topic have been conducted using a systematic approach similar to that of the Campbell Collaboration (CC) or the What Works Clearinghouse (WWC). Thus, the objective of this review is to document the outcome evidence for or against the efficacy of single-sex education as an alternative form of school organization using an unbiased, transparent, and objective selection process adapted from the standards of the CC and WWC to review quantitative studies.
Concurrently with this review of the quantitative literature, we conducted a review of the qualitative literature on the subject of single-sex schooling using parallel coding techniques. Unlike quantitative studies, qualitative studies are not viewed by WWC as appropriate methodology when determining causal relationships. Rather, they contribute to theory building and provide direction for hypothesis testing. Few qualitative studies satisfied the criteria for inclusion. Therefore, the primary focus of this paper is the systematic review of quantitative research.
The following are the major research questions addressed by the systematic quantitative review:
- Are single-sex schools more or less effective than coeducational schools in terms of concurrent, quantifiable academic accomplishments?
- Are single-sex schools more or less effective than coeducational schools in terms of long-term, quantifiable academic accomplishment?
- Are single-sex schools more or less effective than coeducational schools in terms of concurrent, quantifiable indicators of individual student adaptation and socioemotional development?
- Are single-sex schools more or less effective than coeducational schools in terms of long-term, quantifiable indicators of individual student adaptation and socioemotional development?
- Are single-sex schools more or less effective than coeducational schools in terms of addressing issues of procedural (e.g., classroom treatment) and outcome measures of gender inequity?
- Are single-sex schools more or less effective than coeducational schools in terms of perceptual measures of the school climate or culture that may have an impact on performance?
As in previous reviews, the results are equivocal. There is some support for the premise that single-sex schooling can be helpful, especially for certain outcomes related to academic achievement and more positive academic aspirations. For many outcomes, there is no evidence of either benefit or harm. There is limited support for the view that single-sex schooling may be harmful or that coeducational schooling is more beneficial for students.
The Systematic Review Process
The systematic review of the literature consisted of the following steps:
An exhaustive search of electronic databases for citations, supplemented by other sources. This search strategy yielded 2,221 studies.
An initial Phase I exclusion of sources whose subject matter falls outside the defined scope of the study. Criteria used for exclusion in Phase I included:
Population -To be included, the students had to be enrolled in a full-time school. They had to be in elementary, middle, or high school as opposed to college and beyond. Finally, the schools being studied had to be in English-speaking or Westernized countries somewhat comparable to American public-sector schools.
Intervention -The single-sex school had to be one in which students were either completely segregated by sex or were completely segregated for all classes, even if co-located in the same building (i.e., dual academies). Studies of single-sex classes in a coeducational school were excluded from review. This initial screening yielded 379 publications that fit the initial inclusion criteria.
A Phase II exclusion based on obvious methodological considerations (e.g., nonstudy, weak study). On the basis of titles and abstracts, citations that appeared to be essays, reviews, opinion pieces, and similar items were excluded, and only qualitative and quantitative studies that were likely to be codable in Phase III were retained. During Phase II, 114 citations were culled from the 379 items and coded as appropriate for review as quantitative (88) or qualitative (26) studies. Of the 26 qualitative studies, 4 met the criteria for final inclusion and were reviewed separately.
A Phase III evaluation and coding of the remaining quantitative articles. According to the guidelines of the WWC, all studies other than randomized controlled trials, quasi-experimental designs (QED) with matching, or regression discontinuity designs would be excluded prior to Phase III. Under the WWC criteria for inclusion, virtually all single-sex studies would have been eliminated from the review process because of the lack of experimental research on this topic. Therefore, for this review, a conscious decision was made to relax these standards and include all correlational studies that employed statistical controls. By relaxing the WWC standards, the number of candidate studies to be screened in Phase III was greatly increased. A more streamlined and efficient checklist was developed requiring dichotomous responses rather than descriptive responses in order to facilitate rater decision making. To be included in the quantitative review, a study had to use appropriate measurement and statistical principles. A primary criticism of previous single-sex literature has been the confounding of single-sex effects with the effects of religious values, financial privilege, selective admissions, or other advantages associated with the single-sex school being studied. Therefore, in particular a study had to include statistical controls to account for individual differences (e.g., socioeconomic status [SES], individual ability, and age) as well as school and class differences that might account for the differences between single-sex and coeducational schools. Even so, many studies that included at least one covariate lacked other important covariates such as ethnic or racial minority status, socioeconomic status, and grade level or age. Also, it is important to note that the inclusion of covariates cannot control for important unobservable differences between the groups, such as motivation. Because correlational studies cannot adequately address the issue of differences in unobservables (or selection bias), the studies in this review may over or understate the true effects of SS schooling.
The Quantitative Review
Two reviewers coded each study independently, using a quantitative coding guide. A quantitative study was coded for its treatment of the following broad issues: sample characteristics, psychometric properties, internal validity, effect, and bias. Each of these categories had several criteria by which they were coded. To be retained, a study did not have to meet all criteria.
Of the 88 quantitative studies, 48 were eliminated after further review using the coding guide, and 40 studies met the inclusion criteria and were retained. The reasons for the exclusion of these articles were 1) failure to operationalize the intervention properly; 2) failure to apply statistical controls during the analyses; 3) work that was actually qualitative in nature rather than quantitative; 4) work performed in a non-Westernized country and therefore not comparable; 5) work written in a foreign language and therefore not codable by the researchers; 6) failure to draw comparisons between SS and CE schools; and 7) participants not of high school, middle, or elementary school age. In all, 40 studies met the inclusion criteria and were retained in the quantitative review. The following table shows results of each study according to the seven broad questions listed above and is broken into specific criteria within each larger category. Because some studies addressed multiple criteria, the total number of findings is greater than 40. Specifically, there are 112 findings considered in the 40 quantitative studies.
A table summarizing the findings is below . In each row, one of the 32 outcome categories is listed, as well as the total number of studies related to that outcome category and the raw number and percent of findings that either support SS schooling, support CE schooling, are null, or mixed (supporting both CE and SS schooling). While eight of the outcome categories have four or more studies, others have as few as one or two studies. For any outcome category, the percentage of studies falling in any of the dispositions (supporting SS, supporting CE, null, or mixed) and the confidence with which one can use the findings will increase with the number of studies. Therefore, the percentages in the summary table should be treated with caution when only one or two studies appear for that outcome category.
As shown in the Summary Table, every study falls into one of four categories: Pro-SS, Pro-CE, Null, or Mixed. If a study's findings all supported SS schooling for a given outcome variable, it was coded as "Pro-SS". If the study's findings all supported CE for a given outcome variable, it would be coded "Pro-CE". A study was coded "Null" if for all findings regarding that outcome variable, there were no differences between the SS and CE schools. A study was coded "Mixed" if the study had significant findings in opposite directions for different subgroups on the same variable. For example, a study would be coded "Mixed" if on a specific outcome, support was found for single-sex schooling in the case of boys and support was found for coeducation in the case of girls. Another example would be a finding favoring single-sex in a 10th-grade sample and coeducation in a 12th-grade sample for the same outcome variable within a single study. If a study had findings that were both pro-SS and null, it was coded a pro-SS; if the study had findings that were both pro-CE and null, it was coded as pro-CE. Only studies with findings favoring both single-sex and coeducation were coded as mixed. It should also be kept in mind that some researchers evaluated multiple outcome variables in their research; therefore, it is possible that a single published study would yield information that appears in multiple rows of the Summary Table.
Implications of Review
Summary of Findings in Each Domain
Concurrent, quantifiable academic accomplishments
In general, most studies reported positive effects for SS schools on all-subject achievement tests. Studies examining performance on mathematics, science, English, and social studies achievement tests found similar findings with one caveat. Within each of these subject-specific categories, roughly a third of all studies reported findings favoring SS schools, with the remainder of the studies split between null and mixed results. This minimal to medium support for SS schooling applies to both males and females and in studies pertaining to both elementary and high schools. The overall picture is split between positive findings for SS schooling and no differences or null findings, with little support for CE schooling. The one study that found advantages for CE schooling found advantages for white females but not for Asian or black females. Males continue to be underrepresented in this realm of research.
Long-term, quantifiable academic accomplishment
As opposed to concurrent indicators of academic achievement, any positive effects of SS schooling on longer-term indicators of academic achievement are not readily apparent. No differences were found for postsecondary test scores, college graduation rates, or graduate school attendance rates. However, all the findings in this domain came from a pair of studies, indicating the lack of high-quality research on these important criteria. Although some studies favor single-sex education in the case of postsecondary test scores, there is a dearth of recent studies using controls. There has been a similar lack of research on other potential criteria in this domain, such as college grade point average, meritorious scholarships or funding attained, postgraduate licensure test scores, and any career achievement that could ostensibly be tied to quality of schooling.
Concurrent, quantifiable indicators of individual student adaptation and socioemotional development
This category includes a range of outcomes that are not easily grouped together, and the results are mixed. Regarding self-concept and locus of control, the studies are split between those showing positive effects for SS schooling and those showing no differences. In the case of self-esteem, a third of the studies supported CE schooling while half found no difference. Given a recent extensive review concluding that self-esteem's relationship to school success, occupational success, better relationships, leadership, delinquent behavior, and other desirable outcomes is modest to nonexistent, the implications of findings regarding self-esteem appear complementary. Furthermore, CE schooling only had a positive impact on the self-esteem of males.
Findings regarding school track and subject preferences were mixed, with the overall weight of the findings lying somewhere between pro-SS findings and no differences. A majority of studies favored SS schools on the outcome of higher educational aspirations, as evidenced by SS students showing more interest in and taking more difficult courses. SS schools fostered higher educational and career aspirations for girls. More studies emphasized the positive effect of SS schools on career aspirations than CE schools for boys, but evidence regarding their educational aspirations was mixed. A category called "attitudes toward school" showing mixed results was actually a combination of single studies using somewhat different outcome variables, thus reducing the meaningfulness of the category. In terms of actual behaviors, a few studies focused on delinquency, reporting differences in favor of SS schools that were moderated by individual developmental differences. What is lacking is a conceptual framework to tie together the myriad academic-attitude outcome measures used in this realm so that studies will be more directly comparable.
Long-term, quantifiable indicators of individual student adaptation and socioemotional development
The outcomes in this domain generally do not appear in more than one or two studies that made it to Phase III review. Therefore, one must be cautious in generalizing from these results. Having said that, the results still suggest the potential that SS schooling could be associated with a number of post-high school, long-term positive outcomes. These include postsecondary success or participation in collegiate activities while maintaining full-time enrollment for a four-year period, reduced unemployment (males and females), reduced propensity to drop out of high school (males and females), the choice of a nontraditional college major (for females), and political activism (for females). The sole exception is eating disorders; one study found more SS students to have eating disorders than CE students.
Procedural (e.g., classroom treatment) and outcome measures of gender inequity
This question could not be addressed because of a lack of any quantitative studies that used gender equity as an outcome variable at the school level. Any studies that compared SS and CE classrooms within a CE school were outside the purview of this study and were not reviewed.
Perceptual measures of the school climate or culture that may impact performance
This category includes a number of disparate, single-study results. One of the two studies addressing leadership opportunities found more opportunities for both males and females in SS schools; however, the statistical significance of this finding depended on what other variables had been controlled for. The other found that both males and females in SS schools put more value on grades and leadership and less on attractiveness and money. However, there remains a dearth of high-quality empirical studies using this class of outcome variables as criteria.
A final category of outcomes examined as a subset of culture was the realm of subjective satisfaction of students, parents, and teachers with the school environment. The one study in this review that found the social environment more appealing in CE schools is a good case in point in that the same study found that SS students are more interested in grades and leadership and less interested in money and looks. Some qualitative studies have looked at why certain parents prefer SS schooling, and studies in other cultures have found mixed results regarding teacher satisfaction with CE versus SS schooling. However, no empirical studies comparing current parental satisfaction in equivalent SS and CE schools were available for review using the stated guidelines. There remains a lack of research both on this class of criteria and on the relationship of subjective satisfaction to other more critical criteria.
Expected Outcomes Not Seen in the Review
Teenage pregnancy, college performance, differential treatment by teachers, parental satisfaction, bullying in school, and teacher satisfaction were among the many outcomes that we expected to see in the review or that should be addressed but were not found in any included study.
General Trends
A few trends are apparent across all outcomes. The preponderance of studies in areas such as academic accomplishment (both concurrent and long term) and adaptation or socioemotional development (both concurrent and long term) yields results lending support to SS schooling. A limited number of studies throughout the review provide evidence favoring CE schooling. It is more common to come across studies that report no differences between SS and CE schooling than to find outcomes with support for the superiority of CE. In terms of outcomes that may be of most interest to the primary stakeholders (students and their parents), such as academic achievement test scores, self-concept, and long-term indicators of success, there is a degree of support for SS schooling.
The overwhelming majority of studies employ high school students, with a small minority using elementary school students. The preponderance of SS research has been conducted in Catholic SS schools in which students are separated by sex only when entering adolescence. Therefore, opportunities to study SS elementary or middle schools in either the public or private sector have been limited.
There is also a pronounced tendency to study girls' schools more than boys' schools: 76 studies compared SS and CE girls, and 20 of those focused exclusively on girls. Of those 20, 18 were split evenly between support for SS schooling and no differences (nine pro-SS and nine no differences). The other two studies resulted in findings supporting CE schooling. SS and CE schooling for boys was compared in 55 studies, of which only three were studies exclusively devoted to boys' schools.
There is a dearth of quality studies (i.e., randomized experiments or correlational studies with adequate statistical controls) across all outcomes. Even using the more relaxed criterion of allowing correlational studies, each outcome has only limited candidate studies. Too few researchers report descriptive statistics or effect sizes. Mathematics achievement test scores, English achievement test scores, and school subject preference were the only outcomes to have 10 or more qualifying studies. Even within these three categories, the studies differ in the criteria they use and the statistical controls they use to compare SS and CE schooling. This somewhat limits the arguments that can be built and extended from this quantitative review and renders it nearly impossible to conduct a meta-analysis on any outcome area. Many of the remaining studies have other conceptual or interpretive flaws. Many of the studies lacked well-developed hypotheses, and the hypotheses were often not linked directly to the outcomes being studied.
The list of outcomes of interest needs to be expanded in future research and defined more clearly. For example, outcomes such as teenage pregnancy and bullying in school did not appear in a single study of sufficient quality to be reviewed. Other outcomes that are implicit in arguments for and against SS schooling need to be addressed explicitly. These include work-related long-term outcomes such as job performance, leadership performance, mixed-sex work team performance, performance and leadership in volunteer associations, job involvement, and organizational commitment. Few studies address important moderators, that is, variables that may have differential effects for single-sex schooling. For example, a number of authors have proposed that SS schools are particularly effective for students of lower socioeconomic status and perhaps specifically for those who are members of minority or disadvantaged communities. Unfortunately, only three studies addressed this moderator.
This review should not be interpreted as a condemnation of the work of the dedicated researchers who have chosen to study SS-CE differences, as they may not have been in a position to conduct a randomized experiment on this topic. Such a study has yet to be conducted. However, it could be argued that instead of trying to conduct only all-or-nothing studies of whether SS schooling is better or worse than CE schooling, more careful specification of hypotheses and direct linkage of hypotheses to specific outcomes may show ways to also conduct smaller studies that prove whether certain aspects of SS or CE schooling are beneficial.
Finally, there are limits to what a systematic review can accomplish when an intervention is being judged by multiple criteria and all stakeholders do not share the hierarchy of these criteria. Some issues cannot be resolved by any type of research, even randomized experiments, because they involve issues of philosophy and worldview and represent the relative priorities of dueling stakeholders. There is no way to resolve whether an outcome that is important to one stakeholder group, such as parents, students, civil libertarians, and feminists on both sides of the issue, should be accorded more weight than an outcome valued by another group. What is possible is to separate out fact in the form of evidence from fiction by converting as many claims as possible to testable hypotheses and performing the necessary research. In this way, the two parallel debates can be separated from each other. "Does SS schooling benefit or harm the students, and in what ways?" can be separated from "Is it worth it for society regardless of the benefits or costs?" with each debated on its own merits.
These general implications of the review provide a stepping-stone for future research through the continuation of quality research on extant outcomes, the refinement of methodology, better statistical reporting, and the expansion of the theoretical domain. If heeded, these implications can improve the generalizations made about single-sex schooling and coeducation.
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Another argument for single-sex education is boys and girls learn differently. Leonard Sax, founder of the National Association for Single-Sex Public Education, believes, "The kind of learning environment that is best for boys, is not necessarily best for girls" (as cited in Vail, 2002, p. 36).
People who actually attended single-sex schools were far more supportive. Men who attended all-boys schools were 45 percent positive, claiming it was better than coed, with 29 percent saying they were worse. Women who attended all-girls schools were 41 percent positive, and 26 percent negative.
Proponents also assert that single-sex education counters male-females stereotypes by ensuring that both sexes can. take initiative in meeting challenges. assume leadership roles. pursue activities that in co-educational settings often are seen as too "masculine" for females or too "feminine" for males.
Eliminating gender stereotypes in the classroom has demonstrable advantages, especially in closing achievement gaps. According to Sara Sykes, the director of admissions at Westover School (an all-girl's school in Middlebury, Connecticut), students at single-sex schools are "more likely to pursue a wider range of fields of study especially in science, technology, engineering and mathematics."
Single-sex education, common in the United States until the 19th century, when it fell into deep disfavor except in private or parochial schools, is on the rise again in public schools as ...
sands of children attend single-sex schools each day, and, in the case of public schools, millions of taxpayer dollars are being spent on single-sex schooling. It is essential that scientists, educators, and policy makers know whether single-sex schooling is a more effective learning environment for students, compared with coed-ucational schooling.
December 22, 2015. Defenders of same-sex schools hold fast to the belief that girls and boys benefit from separate academic instruction. Proponents often point to school experiences documented in ...
The papers published here, taken together, suggest that the purported benefits of single-sex education (i.e., heightened self-esteem, increased academic achievement, and broadened educational and career outcomes, e.g., Lee and Marks 1990) may not hold up under the scrutiny of social science research. At the same time, the studies provide ...
INTRODUCTION. The topic of single-sex versus mixed-sex schooling continues to be a source of debate within education policy in many countries. If single-sex schools bring about better academic outcomes for students, such a policy would be a low-cost way in which to raise general educational attainment relative to other measures such as changes to class size or infrastructural investments. 1 As ...
Single-sex education refers most generally to education at the elementary, secondary, or postsecondary level in which males or females attend school exclusively with members of their own sex. This report deals primarily with single-sex education at the elementary and secondary levels. Research in the United States on the question of whether public single-sex education might be beneficial to ...
"The Advantages of Single-Sex Education." National Forum of Educational Administration and Supervision 23: 5-15. Jackson, C. Kirabo. 2011. "Single-Sex Schools, Student Achievement, and Course Selection: Evidence from Rule-Based Student Assignments in Trinidad and Tobago." Working Paper 16817.
Some education experts say that single-gender schools can help reduce behavioral issues for boys because the educational environment provides a more comfortable classroom experience. "In single ...
The rest of the world took more notice: there were two articles and an editorial in major Canadian papers, ... The researchers found little evidence of consistent advantages for either single-sex education or coeducation. In the United States, some states and cities have experimented with single-sex schools for disadvantaged kids. Some of these ...
Here are common arguments for both coeducation and single-sex education. The Case for Co-ed. Offers school diversity—students will find it easier to adapt in many different environments. Teaches equality and tolerance—co-ed schools treat students to be tolerant of each other. Promotes socialization—students enrolled in mixed classrooms ...
This article provides an overview of the advantages and disadvantages of same-sex and mixed-gender schooling, the importance of diverse educational environments, the strategies for addressing ...
The Case Against Single-Gender Classrooms. In 2007, Jefferson Leadership Academies reversed its same-sex curriculum after issues with disappointing test scores and scheduling conflicts arose. Detractors of same-sex classrooms weren't surprised since one of the biggest challenges to single-sex classrooms is the lack of concrete evidence that they boost achievement.
In this essay, the cases for and against single-sex education will be discussed. This essay will firstly present some positive impacts of single-sex schools, including an increase in students' academic achievement and a decrease in classroom relationship problems related to gender. It will then discuss the reasons against single-sex schools.
Single Sex Education: Benefits and Advantages. Topic: Education Words: 1493 Pages: 5 Nov 3rd, 2021. According to Hammer, (1996), single sex education is a form of education where the girls and boys attend different lessons or are put in different schools or buildings.
Also, if a child wishes to attend a single-sex school in America, it must be voluntary. (Guarisco) For American public school systems, same-gender education would be more advantageous because of the higher test scores, decrease in distractions from the opposite gender, and adapting curriculum.
Advantages and Disadvantages of Single Gender Schools - Debate points for single-gender schools, pros & cons of single-sex schools, negative effects of single-gender education and disadvantages of all boy schools. We help you decide which is the better choice for your child.
Essay. Are there benefits to attending a single-sex school? "If you want your daughter to be a high-flying businesswoman or banker, send her to a single-sex school." (The Guardian online) New research concludes consistency in relationship between gender and education styles. Single gender classes perform better when separated in their pre ...
Argumentative Essay On The Pros And Cons Of Single-Sex Schools. Type of paper: Argumentative Essay. Topic: Gender, Segregation, Students, Family, Development, Children, Education, School. Pages: 9. Words: 2500. Published: 04/01/2020. ORDER PAPER LIKE THIS. Education is a conventional mode of receiving knowledge needed for people to pursue ...
gender. with more comfortable behaviour. , single-sex classrooms allow the teacher to tailor the curriculum. To be more precise, they will be able to design the syllabus in a way that students connect with it. , at an all-girls school, the teacher can read books which are of more interest to girls and discuss their concerns.